# -*- coding: utf-8 -*-

#
# peerscape.http.controllers.list
#
# Copyright 2008 Helsinki Institute for Information Technology
# and the authors.
#
# Authors:
#       Konrad Markus <konrad.markus@hiit.fi>
#

# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation files
# (the "Software"), to deal in the Software without restriction,
# including without limitation the rights to use, copy, modify, merge,
# publish, distribute, sublicense, and/or sell copies of the Software,
# and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

from webob import Response
from webob.exc import HTTPBadRequest, HTTPNotFound, HTTPOk

from peerscape.lib import json
from peerscape.http.controllers import BaseController

class List(BaseController):
    def index(self, req):
        db = req.environ['peerscape.db']
        iid = req.urlvars.get('peerscape.hexlabel')
        path = req.urlvars.get('peerscape.path')

        if not iid or not path:
            return HTTPBadRequest()

        path = '/'+path
        
        # get the value
        listing = None
        try:
            listing = db.list(iid, path)
        except:
            pass

        #[TODO: encoding, mimetype?]
        if listing:
            res = HTTPOk()
            res.content_type = 'application/json';
            if req.GET.has_key('jsonp'):
                res.body = '%s(%s)' % (req.GET['jsonp'], listing)
            else:
                res.body = json.dumps(listing, sort_keys=False)
            return res
        else:
            return HTTPNotFound()
            
